Exbio — Research products — Antibodies — Other intracellular antigens — Anti-Hu PAG1 Purified

Anti-Hu PAG1 Purified

Regulatory status

RUO

Antigen

PAG1

Clone

MEM-255

Format

Purified

Reactivity

Human

Application

FC(IC), WB, IHC(P)

Variant

0.1 mg

11-347-C100

In stock

198.00 USD

0.025 mg

11-347-C025

Delivery 1 week

99.00 USD

Variant

0.1 mg

11-347-C100

In stock

198.00 USD

0.025 mg

11-347-C025

Delivery 1 week

99.00 USD

Contact distributor

Product details

Description

Images

References

SDS download

Isotype

Mouse IgG2a

Specificity

The antibody MEM-255 recognizes an epitope (aa 235-280) of Csk-binding protein (Cbp) located in the cytoplasmic domain, also known as protein associated with glycosphingolipid-enriched microdomains (PAG).

Application

FC(IC), WB, IHC(P)

Application details

Flow cytometry: Recommended dilution: 2 μg/ml. Intracellular staining.
Immunohistochemistry (paraffin sections): Positive tissue: tonsil, spleen.
Western blotting: Csk binding protein is an ubiquitously expressed 46 kDa transmembrane adaptor protein present in membrane microdomains (rafts), which, however, migrates on SDS-PAGE gels anomalously as an 80 kDa molecule.

Reactivity

Human

Negative species

Mouse, Rat, Cow

Immunogen

Recombinant intracellular fragment (aa 97-432) of human Cbp (PAG).

Concentration

1 mg/ml

Preparation

Purified by protein-A affinity chromatography.

Formulation

Phosphate buffered saline (PBS), pH 7.4, 15 mM sodium azide

Storage and handling

Store at 2-8°C. Do not freeze.

The product is intended For Research Use Only. Diagnostic or therapeutic applications are strictly forbidden. Products shall not be used for resale or transfer to third parties either as a stand-alone product or as a manufacture component of another product without written consent of EXBIO Praha, a.s. EXBIO Praha, a.s. will not be held responsible for patent infringement or any other violations of intellectual property rights that may occur with the use of the products. Orders for all products are accepted subject to the Term and Conditions available at www.exbio.cz. EXBIO, EXBIO Logo, and all other trademarks are property of EXBIO Praha, a.s.

Other names

CBP, PAG

Antigen description

PAG (phosphoprotein associated with GEMs), also known as Cbp (Csk-binding protein), is a ubiquitously expressed 46 kDa transmembrane adaptor protein present in membrane rafts (glycosphingolipid-enriched microdomains), which however migrates on SDS PAGE gels anomalously as an 80 kDa molecule. Following tyrosine phosphorylation by Src family kinases, PAG binds and thereby activates the protein tyrosine kinase Csk, the major negative regulator of the Src family kinases. Signaling via the B-cell receptor in B cells or high affinity IgE receptor (FcepsilonRI) in mast cells leads to PAG increased tyrosine phosphorylation and Csk binding, while T cell receptor signaling causes PAG dephosphorylation, loss of Csk binding and increased activation of the protein tyrosine kinase Lck.

Entrez Gene ID 55824

UniProt ID Q9NWQ8

Immunohistochemistry staining (paraffin-embedded sections) using anti-Cbp/PAG (MEM-255). Cbp/PAG is expressed in germinal centers of lymph node lymphoid follicle and in follicular lymphoma (it is absent from mantle zone). Cbp/PAG is also expressed more weakly in T cells in tonsil and the thymic medulla.

Product specific references:

Semac I, Palomba C, Kulangara K, Klages N, van Echten-Deckert G, Borisch B, Hoessli DC: Anti-CD20 therapeutic antibody rituximab modifies the functional organization of rafts/microdomains of B lymphoma cells. Cancer Res. 2003 Jan 15;63(2):534-40.
PubMed

Brdicka T, Pavlistova D, Leo A, Bruyns E, Korinek V, Angelisova P, Scherer J, Shevchenko A, Hilgert I, Cerny J, Drbal K, Kuramitsu Y, Kornacker B, Horejsi V, Schraven B: Phosphoprotein associated with glycosphingolipid-enriched microdomains (PAG), a novel ubiquitously expressed transmembrane adaptor protein, binds the protein tyrosine kinase csk and is involved in regulation of T cell activation. J Exp Med. 2000 May 1;191(9):1591-604.
PubMed

Brdickova N, Brdicka T, Andera L, Spicka J, Angelisova P, Milgram SL, Horejsi V: Interaction between two adapter proteins, PAG and EBP50: a possible link between membrane rafts and actin cytoskeleton. FEBS Lett. 2001 Oct 26;507(2):133-6.
PubMed

Schatzlmaier P, Supper V, Göschl L, Zwirzitz A, Eckerstorfer P, Ellmeier W, Huppa JB, Stockinger H: Rapid multiplex analysis of lipid raft components with single-cell resolution. Sci Signal. 2015 Sep 22;8(395):rs11
PubMed

Svec A, Velenská Z, Horejsí V: Expression pattern of adaptor protein PAG: correlation between secondary lymphatic follicle and histogenetically related malignant lymphomas. Immunol Lett. 2005 Aug 15;100(1):94-7.
PubMed

Tedoldi S, Paterson JC, Hansmann ML, Natkunam Y, Rudiger T, Angelisova P, Du MQ, Roberton H, Roncador G, Sanchez L, Pozzobon M, Masir N, Barry R, Pileri S, Mason DY, Marafioti T, Horejsi V: Transmembrane adaptor molecules: a new category of lymphoid-cell markers. Blood. 2006 Jan 1;107(1):213-21. Epub 2005 Sep 13.
PubMed

Davidson D, Bakinowski M, Thomas ML, Horejsi V, Veillette A: Phosphorylation-dependent regulation of T-cell activation by PAG/Cbp, a lipid raft-associated transmembrane adaptor. Mol Cell Biol. 2003 Mar;23(6):2017-28.
PubMed